GHash announced in a release they are at 51% of total hashing power, a level where they can do such things as disallow legitimate transactions and spend Bitcoins twice. While GHash insists they have no such aims, the achievement exposes a serious fault with the cryptocurrency and raises skepticism of the entire concept. Alex Wilhelm explains.

A two-time LendIt Journalist of the Year nominee and winner in 2018, Tony has written more than 2,000 original articles on the blockchain, peer-to-peer lending, crowdfunding and emerging technologies over the past seven years, making him one of the senior writers in the alt-fi sector.

"The evolution of the crowdfunding and peer-to-peer lending scenes is absolutely fascinating to chronicle. It is a joy to be around people with such passion and vision."